Do I need an aftermarket cooler and suggestions for Cheaper parts

[Jurena]

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-6350 3.9GHz 6-Core Processor ($139.99 @ Newegg)
Motherboard: MSI 970A-G46 ATX AM3+ Motherboard ($79.98 @ Outlet PC)
Memory: Patriot Gamer 2 Series 8GB (2 x 4GB) DDR3-1600 Memory ($47.98 @ NCIX US)
Memory: Kingston 8GB (1 x 8GB) DDR3-1333 Memory ($55.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($66.61 @ Outlet PC)
Video Card: Asus Radeon HD 7770 2GB Video Card ($137.98 @ SuperBiiz)
Case: Cooler Master Elite 311 (Blue) ATX Mid Tower Case ($45.15 @ NCIX US)
Power Supply: Corsair Builder 500W 80 PLUS Bronze Certified ATX12V Power Supply ($58.24 @ Amazon)
Optical Drive: LG GH24NS95 DVD/CD Writer ($14.99 @ Newegg)
Total: $646.91
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-05-04 22:48 EDT-0400)

 

[ksham]

1. That RAM is no longer available.
2. Why pair a 2x 4GB with a 1x 8GB?
3. Get a Cooler Master Hyper 212 EVO.

 

[Jurena]

1. That RAM is no longer available.
2. Why pair a 2x 4GB with a 1x 8GB?
3. Get a Cooler Master Hyper 212 EVO.

The 2x4GB was just a suggestion that i saw and added, buying these parts in a while and i want to remember which ram is pretty cheap.